Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
The B110 Battery Monitor Module performs internal diagnostics. The Battery Monitor Module communicates to the K9 Body Control Module (BCM) Via LIN. The K9 Body Control Module communicates the B110 Battery Monitor module data to the K20 Engine Control Module Via Serial Data. The Body Control Module sets faults for any errors in the reported alive rolling counts.